1．A spaceship from another planet? A satellite? A weather balloon? Can’t tell? That’s why it is called a UFO!從外星來的飛船嗎?一顆衛星嗎?一個氣象氣球?說不準?這就是被稱為不明飛行物的原因!
(tell常與情態動詞can，could或be able to連用，有“判斷”，“區別”和“猜測”的意思。
How were you able to tell which button to press?你怎么判斷出按哪個鈕的?
1一can’t tell Kelly and Connie．一’我分不清凱利和康妮o
工can’t tell Kelly from Connie． ．
工can’t tell Kelly and Connie apart。
：I can’t tell the difference between Kelly and Connie．
2．The Loch Ness Monster in Scotland…could be a sunken shi p!蘇格蘭海灣怪物有可能是條沉船!
could推測，可能.例如：
I saw Li Jia just now in the library．She couldn’t have gone abroad．
(2)sink是不規則動詞，它的過去式是sank，過去分詞是sunk或sunkeno
①vt．使．．沉沒；使陷入。例如：
They would rather sink the ship than surrender．他們寧可把船沉掉也不愿投降
He was sunk in deep thought。他陷入沉思。
②vi．下沉，下陷，下降。例如：
The ship sank to the bottom of the river.
（3）sinking 和 sinken 區別
They tried every means to rescue the sinking boat but failed.
They finally brought the sunken boat from the bottom of the river.
You might run into a Yeti in the Himalayas, or just see a few footprints, but you’d still be lucky .
你也許在喜馬拉雅山會遇到雪人或但看到幾個腳印，但你仍然是幸運的， ．L2”“”run into
①撞進，使撞人。例如：
汽車撞在墻上
②碰到，遇到，相當于come across，meet with例如：
hey ran into many difficulties in the project of rescuing the 0ld temple。
③(累計而)達到例如：
Thc money they spent on the bridge across the Changjiang River ran into one billion yuan. 4． Police in America have stepped up their search for a fifteen- year-old boy who went missing two ago in Dover, New Hamphire.
美國警方現已加緊對一名15歲失蹤男孩的搜索，該男孩兩天前在新罕布什爾州的多佛市失蹤.
在集體名詞police， audience cattle等前面一般都需要用定冠詞the，但在本課中，由于是選自報紙，受篇幅限制，有時省略一些像冠詞那樣的虛詞，意思不變。
注意：考試中一般不采取這種用法。
(2)step up speed up，increase走近；登上；加速．；逐步提高。例如：
I think it’s too difficult for the old man to step up so high a tower．
we decided to step up production to try to meet the increased demand．
(3) search
尋找；搜尋，搜查。例如：
The search for the missing boy has not been successful．對失蹤男孩的搜尋還未成功。
He walked through the desert in Search 0f the lost Camel．他走過沙漠尋找丟失的駱。
S0 far they have been unlucky in their Search for go1d．到目前為止，他們在淘金過程中并不幸運。
②vt.尋找；搜尋，搜查。例如：
The villagers were searching for the missing child．
She searched every shop for a birthday present for her husband。
Go missing此處go 是一個連系動詞，表示“變為”，“處于”\
常見的詞組有：
①go wrong出問題，壞了o
②go mad／crazy發瘋o：
③go ill(事態)惡化
④go hungry挨餓
⑤go tired累壞了十
⑥go grey(頭發)變花
5.due to的用法 ．
①表示‘由于”相當于because 0f, caused by。例如：
The accident was due to careless driving．這次事故起于駛疏忽。
②表示“應付”，“應得到的”，“預期的”
我們的一切進步都歸功于老師的幫助。
When is the rent due?何時應付房租?
When Justin did not show up“tbe family 1unch the next day，Mrs Foster became worried and told her husband to call the police.全家人在一起吃午飯時，賈斯廷仍然沒有露面，福斯特夫人開始擔心了，就讓丈夫打電話報警。
show up 的用法
（1）露面，出現，到場，
We’ve been waiting for hours for you to show up．
②揭穿，揭露，相當于make the truth known，make someone feel embarrassed.
(1)rule out去掉；排除；取消；拒絕考慮。例如：
Pleas e rule out the misspeh word l
Lung cancer cannot be ruled out in this case．
Bad weather ruled the excursion out for that day．
8 (1)makeup的用法
①構成；占……比例，相當于form。例如：
Girls makc up 45％of the studcnt population in our school．女生占我們全校學生的百分之四十五。
This country is made”up of many small islands．這個國家是由許多小島組成的。
②編寫；捏造，相當于invent a story，a poem or an excuse。例如：
The teachetr asked the childen to make up poem about Christmas。老師讓孩子們寫一首圣誕詩。
③彌補，補償，相當于replace something that has beenlost。例如：
Because of his illness，he had to make up the missed lessons．由于生病，他必須把落下的課補上。 ‘
We must make up for the lost time．我們一定要把失去的時間補回來。 ．
④和解，調停。相當于end a quarrel with someone and become friendly again。例如： ’
We haven’t been getting on well．Let’s make up．我們一直相處得不好。我們和好吧。
⑤化妝，．
Tom watched his sister make herself up for her date.
(2)charge的用法
①n．負責；責任。例如：
Who is in charge of your class?誰負責你們班?
Who takes charge of your class?
This class is in／under my charge．這個班由我負責。
This is in the charge of Mr Smith．這個工程由史密斯先生負責。
*注意：in charge of表示“負責…‘掌管”(主動)；in the charge of sb ／in (under)one's charge表示“由……負責”，“由……掌管”(被動)。
②n.收費；價錢。例如： 、
You can visit the museum free of charge．你可以免費參觀那個博物館。
Every year he travels once at his own charge．每年他自費旅游一次。
③“．要價；控告；使承擔(責任、任務)
How much do you charge me for two nights in the hotel .
9.wonder ，可作動詞，也可以作名詞。
①vt。想知道，不知道。例如：
1 wonder if the school sports meeting is to be held next week． 0
②vi感到奇怪，驚奇，相當于feel surprised。例如： ]
I don’t wonder you were anxious about their safrty．你為他們的安全著急，我是不奇怪的。 ．
(3)驚奇[U] 奇跡 奇觀[C]
He has fallen ill, and no wonder he can’t come.
④常用來比較客氣地提出請求或征求對方許可。例如：
1 wonder if you would do me a favour．不知你能否幫幫我。